摘要
阳泉矿区瓦斯含量大,涌出量大。在10对生产矿井中有煤与瓦斯突出矿井4对,高瓦斯矿井6对,矿井瓦斯相对涌出量为29.2m3/t,矿井瓦斯绝对涌出量为1580.68m3/min。为保障煤矿安全生产,阳泉矿区采煤工作面采用"一井两回"通风系统,风量一般在1500m3/min。同时推广邻近层和本煤层钻孔抽放,2008年瓦斯抽采总量达到5.0126亿m3。本文介绍了阳泉矿区瓦斯抽放现状,并总结了存在的问题,并对以后如何抽采瓦斯进行了规划。
Yangquan mining area has high gas content and gas emission. Among ten production wells, four of them are coal and gas outburst wells, and six are gassy wells. The average relative gas emission of the coal mines is 29.2m^3/t, and the absolute gas emission is 1580.68m^3/min （including drainage）. In order to guarantee the coal mine safety production in Yangquan mining area, the ＂One-in, two-return＂ ventilation system is adopted in the working faces, and the average flow rate is 1500m^3/min. At the same time, gas drainage by drilling boreholes in the adjacent seams and in the working seams is promoted. In 2008, the total volume of gas drainage reached 501.26 million m^3. The paper introduces the current situation of gas drainage in Yangquan Mining Area, summarizes some existing problems, and makes a plan on how to drain gas in the future.
出处
《中国煤层气》
2009年第6期28-30,42,共4页
China Coalbed Methane
关键词
阳泉
瓦斯治理
抽放
Yangquan
gas control
drainage
